| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| package org.netbeans.modules.editor.mimelookup.impl; |
| |
| import java.io.File; |
| import java.io.FileNotFoundException; |
| import java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.List; |
| import org.openide.filesystems.FileObject; |
| import org.openide.filesystems.FileUtil; |
| |
| /** |
| * @author Martin Roskanin |
| */ |
| public class TestUtilities { |
| |
| private TestUtilities(){ |
| } |
| |
| /** Method will wait max. <code> maxMiliSeconds </code> miliseconds for the <code> requiredValue </code> |
| * gathered by <code> resolver </code>. |
| * |
| * @param maxMiliSeconds maximum time to wait for requiredValue |
| * @param resolver resolver, which is gathering an actual value |
| * @param requiredValue if resolver value equals requiredValue the wait cycle is finished |
| * |
| * @return false if the given maxMiliSeconds time elapsed and the requiredValue wasn't obtained |
| */ |
| public static boolean waitMaxMilisForValue(int maxMiliSeconds, ValueResolver resolver, Object requiredValue){ |
| int time = maxMiliSeconds / 100; |
| while (time > 0) { |
| Object resolvedValue = resolver.getValue(); |
| if (requiredValue == null && resolvedValue == null){ |
| return true; |
| } |
| if (requiredValue != null && requiredValue.equals(resolvedValue)){ |
| return true; |
| } |
| try { |
| Thread.sleep(100); |
| } catch (InterruptedException ex) { |
| time=0; |
| } |
| time--; |
| } |
| return false; |
| } |
| |
| /** Interface for value resolver needed for i.e. waitMaxMilisForValue method. |
| * For more details, please look at {@link #waitMaxMilisForValue()}. |
| */ |
| public static interface ValueResolver{ |
| /** Returns checked value */ |
| Object getValue(); |
| } |
| |
| public static void deleteFile(final File workDir, final String path) throws IOException { |
| File f = new File(workDir, path); |
| FileObject fo = FileUtil.toFileObject(f); |
| if (fo == null) { |
| throw new FileNotFoundException(f.getAbsolutePath()); |
| } |
| fo.delete(); |
| } |
| |
| public static void createFile(final File workDir, final String path) throws IOException { |
| FileObject fo = FileUtil.toFileObject(workDir); |
| if (fo == null) { |
| throw new IOException("Can't map '" + workDir.getAbsolutePath() + "' to the filesystem repository."); |
| } |
| if (path.endsWith("/")) { |
| FileUtil.createFolder(fo, path.substring(0, path.length() - 1)); |
| } else { |
| FileUtil.createData(fo, path); |
| } |
| } |
| |
| public static void sleepForWhile() { |
| try { |
| Thread.sleep(321); |
| } catch (InterruptedException ex) { |
| // ignore |
| } |
| } |
| |
| public static void consumeAllMemory() { |
| List<byte[]> list = new ArrayList<byte[]>(); |
| long size = 0; |
| try { |
| for(int i = 0; i < 1000000; i++) { |
| byte [] padding = new byte[100000]; |
| list.add(padding); |
| size += padding.length; |
| } |
| throw new IllegalStateException("Can't run out of memory! The VM's heap size is too big."); |
| } catch (OutOfMemoryError e) { |
| // ok the VM's just run out of memory |
| // release everything we've allocated |
| list = null; |
| System.out.println("OutOfMemory after allocating " + size + " bytes."); |
| } |
| } |
| |
| public static void gc() { |
| for (int i = 0; i < 10; i++) { |
| System.gc(); |
| try { |
| Thread.sleep(123); |
| } catch (InterruptedException ex) { |
| // ignore |
| } |
| } |
| } |
| } |